#div_backend_auth {
  background:white; border:red 0px solid; width:400px; height:300px;
  text-align:left; color:orange; overflow:hidden;
}
#div_backend_auth button {
  overflow:visible; height:20px; padding-left:10px; padding-right:10px;
  border:#bbb 1px solid; background:#ddd; color:orange;
  font-weight:bold; cursor:pointer;
}
#div_backend_auth a {  
  text-decoration:none; color:orange; font-weight:normal;
}
#div_backend_auth a:hover { color:gold; }

.div_backend_auth_tit { 
  border-bottom:orange 1px solid; text-align:right; font-family:georgia;
  font-size:18px; 
}
.inp_backend_ath {
  background:white; border:#ddd 1px solid; border-bottom:#bbb 1px solid;
  width:380px; height:20px;
}